1. Centre for Public Health Queen's University Belfast UK
2. Department of Maternal & Fetal Medicine Kanad Hospital, Al Ain Abu Dhabi United Arab Emirates
3. West Midlands Regional Genetics Laboratory and Clinical Genetics Service Birmingham Women's and Children's NHS Foundation Trust Edgbaston UK
4. West Midland's Perinatal Pathology Service Birmingham Women's and Children's NHS Foundation Trust Edgbaston UK
5. Fetal Medicine Centre Birmingham Women's and Children's NHS Foundation Trust Edgbaston UK
6. Institute of Metabolism and Systems Research, College of Medical & Dental Sciences University of Birmingham Edgbaston UK